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47 lines
3.0 KiB
Markdown
47 lines
3.0 KiB
Markdown
# 电商基础秒杀项目
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项目简介：基于SpringBoot，数据库使用MySQL
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开发工具：IntelliJ IDEA 2021.3.2 (Ultimate Edition)
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数据库版本：MySQL 5.7
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项目数据库文件：[点击打开](./Others/sql/flashsale.sql)
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### 默认用户
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> 用户名密码均为 `admin`
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### 本次修改通过以下方式查看👇
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> http://localhost:8090/user/get?id=2
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预期效果：
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```json
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{"data":{"errCode":10002,"errMsg":"未知错误"},"status":"fail"}
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```
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### 层次结构（以User为例，自上向下）
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| | 目录 | Java对象类型 | 说明 | 举例 |
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| ----------------------------- | --------------------- | ----------------- | ---------------------------------------- | ---------------------------- |
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| **<nobr>Controller层</nobr>** | | | | |
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| Controller | controller | 类 class | | controller.UserController |
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| View Object | controller/viewobject | 类 class | 将用户Model转化为可供UI使用的View Object | controller.UserController |
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| **<nobr>Service层</nobr>** | 转换成业务模型 | | | |
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| Service | service | 接口 interface | | service.UserService |
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| ServiceImpl | service/impl | Service接口实现类 | 将DataObject组装成Model | service.impl.UserServiceImpl |
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| Model | service/model | 类 class | 用户模型Model | service.model.UserModel |
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| **<nobr>Dao层</nobr>** | 对数据库的映射 | | | |
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| Mapper | dao | 接口 interface | | dao.UserDOMapper |
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| Mapping | resources/mapping | Mapper接口实现类 | xml格式；SQL语句 | mapping/UserDOMapper.xml |
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| Data Object | dataobject | 类 class | | dataobject.UserDO |
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**Tips:** Model与Data Object并非完全一一对应，例如UserModel是由ServiceImpl将UserDO和UserPasswordDO组装而成的。
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response: 用于处理HTTP请求返回
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error: 用于返回错误信息 |